US Bridges

E-470 Ramp G over Relocated Third Creek

Good

Adams County, Colorado · 35.46 MI from I25 · Structure no. E-470-35.46D

Built
2001
24 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
219 ft
3 main spans
Daily traffic
2,700
2021 count
Owner
Toll Authority
Local Toll Authority

About this bridge

E-470 Ramp G over Relocated Third Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying E-470 Ramp G over Relocated Third Creek in Adams County, Colorado. It was built in 2001, so it is 24 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,700 vehicles a day, projected to reach 4,806 by 2041. The structure is 219 ft (66.8 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesE-470 Ramp G
CrossesRelocated Third Creek
Location35.46 MI from I25
Coordinates39.9257, -104.80312
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating58.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length219 ft (66.8 m)
Longest span70 ft (21.3 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2021)
Projected traffic4,806 by 2041
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was E-470 Ramp G over Relocated Third Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is E-470 Ramp G over Relocated Third Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does E-470 Ramp G over Relocated Third Creek carry?

About 2,700 vehicles per day (2021 count).

How long is E-470 Ramp G over Relocated Third Creek?

The structure is 219 ft (66.8 m) long with a longest span of 70 ft (21.3 m) and a deck 28 ft wide.

Who owns E-470 Ramp G over Relocated Third Creek?

It is owned by the Local Toll Authority.